Abstract: A sliding member is disposed on one wing of the concave portion to advance and retreat in directions parallel to insertion and ejection of a card, and formed a heart-shaped cam groove. The base-end side of the leaf spring is fastened to the sliding member; the other end projects toward the opening of the concave portion. A compressed-coil spring applies a biasing force on the sliding member in a direction of card ejection. One end of the guide rod is coupled to the heart-shaped cam groove; the other end is pivotably supported on the housing. The sliding member has an engaging piece that touches an oblique side formed on a side surface of the card, and the leaf spring has a semi-circular claw that moves in and out of a surface of the card at a substantially square concave portion, thereby resiliently engaging the concave portion.

Abstract: A sliding member is disposed on one wing of the concave portion to advance and retreat in directions parallel to insertion and ejection of a card, and formed a heart-shaped cam groove. The base-end side of the leaf spring is fastened to the sliding member; the other end projects toward the opening of the concave portion. A compressed-coil spring applies a biasing force on the sliding member in a direction of card ejection. One end of the guide rod is coupled to the heart-shaped cam groove; the other end is pivotably supported on the housing. The sliding member has an engaging piece that touches an oblique side formed on a side surface of the card, and the leaf spring has a semi-circular claw that moves in and out of a surface of the card at a substantially square concave portion, thereby resiliently engaging the concave portion.

Abstract: The optical receptacle according to the present invention is attached to a printed board and an optical plug can be connected thereto. The optical receptacle comprises a tubular main housing and a socket housing which is inserted into and attached to the main housing. The main housing has an elastic locking part which protrudes from the outer circumference surface and locks onto the printed board, and the socket housing has a locking slotted pin which protrudes from the outer circumference surface and locks onto the printed board. This optical receptacle is attached to the printed board after the two pieces, the main housing and the socket housing, are assembled. As a result, the construction of the optical receptacle can be simplified because ground pins become unnecessary. Additionally, the optical receptacle can be easily attached to a printed board because it does not have to be welded onto the printed board with the ground pins.

Abstract: A card connector can ensure credibility of electric contact between electrodes of an inserted card and contact elements against impact and vibration as well as lowering of the height. The card connector has a main body unit having a panel portion including contact elements with a spring property, and having a rising portion on either side, the rising portion having at its front portion a notch portion followed by a hook portion, and having at its rear portion a generally L-shaped see-through hole; and a tray having a card holding portion for inserting a card, and having a front-portion tab and a rear-portion tab on either side, wherein when the tray is closed, the front-portion tab is in a position for engaging with the hook portion and the rear-portion tab is in a position at an end of a horizontal portion of the generally L-shaped see-through hole to regulate the movement of the tray in the back-and-forth direction.

Abstract: The optical receptacle according to the present invention is attached to a printed board and an optical plug can be connected thereto. The optical receptacle comprises a tubular main housing and a socket housing which is inserted into and attached to the main housing. The main housing has an elastic locking part which protrudes from the outer circumference surface and locks onto the printed board, and the socket housing has a locking slotted pin which protrudes from the outer circumference surface and locks onto the printed board. This optical receptacle is attached to the printed board after the two pieces, the main housing and the socket housing, are assembled. As a result, the construction of the optical receptacle can be simplified because ground pins become unnecessary. Additionally, the optical receptacle can be easily attached to a printed board because it does not have to be welded onto the printed board with the ground pins.

Abstract: A card connector can ensure credibility of electric contact between electrodes of an inserted card and contact elements against impact and vibration as well as lowering of the height. The card connector has a main body unit having a panel portion including contact elements with a spring property, and having a rising portion on either side, the rising portion having at its front portion a notch portion followed by a hook portion, and having at its rear portion a generally L-shaped see-through hole; and a tray having a card holding portion for inserting a card, and having a front-portion tab and a rear-portion tab on either side, wherein when the tray is closed, the front-portion tab is in a position for engaging with the hook portion and the rear-portion tab is in a position at an end of a horizontal portion of the generally L-shaped see-through hole to regulate the movement of the tray in the back-and-forth direction.

Abstract: A connector includes a cover adapted to openably close an opening of a housing, and a locking mechanism for locking the cover in a closed position. The cover is provided with first metallic reinforcement means which is partially embedded in the cover during the molding thereof. Second metallic reinforcement means is fixed to the housing. The cover is locked in the closed position by bringing an engagement portion of the first reinforcement means into engagement with an engagement portion of the second reinforcement means.

Abstract: An electrical connector for flexible printed board includes a housing with an opening, and a cover rotatable about a pivotal axis for closing or opening the opening. When the cover is closed, a pressure portion disposed along one edge of the cover is clamped between a flexible printed board on a resilient piece of a fork-shaped contact and a fixing piece of the contact while pressing the flexible printed board against the resilient piece. A wire fixed within the cover includes a pair of opposite ends projecting from lateral sides of the cover along the pivotal axis, and an intermediate portion circumventing the pressure portion as spaced a distance from the pivotal axis.